It seems as though this should definitely have a "beta" tag on it. Google really does have some great services, but they also have a lot of fragmentation amongst their products. I fully expected their Google Drive to be a one-stop collection of all of our music uploaded through Google Music, any videos we've downloaded through the Play Store, even videos that we've "favorited" in YouTube, along with any pictures that we've uploaded, along with documents, etc. Yet, we have Google Drive And Google/Play Music. Sort of like Gtalk AND G+ Messenger.
As for the Google Drive, I'd like to 1) see deeper integration within Windows (for me) in terms of uploading files and 2) for cloud services to solve the dilemma of having to copy files into a Google Drive folder. I would rather not have files in two places on my computer. If I wanted everything uploaded to Google Drive, I guess that I could set broader folders like My Documents, My Pictures and My Videos to upload, but what about if I only want certain files uploaded? That is one of the issues with cloud services.